Phlox plant named ‘Daughter of Pearl’

ABSTRACT

A new and distinct  Phlox  plant named ‘Daughter of Pearl’, characterized by its upright and mounding plant form; vigorous growth habit; freely basal branching habit; early and freely flowering habit; large conical inflorescences with white and purple-colored flowers; and resistance to Powdery Mildew.

Botanical designation: Phlox carolina×Phlox maculata.

Cultivar denomination: ‘DAUGHTER OF PEARL’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct Phlox plant, botanically known as Phlox carolina×Phlox maculata and hereinafter referred to by the name ‘Daughter of Pearl’.

The new Phlox plant is a product of a planned breeding program conducted by the Inventor in Upper Tyrone Township, Pa. The objective of the breeding program is to create new vigorous Phlox plants with early flowering habit, attractive leaf and flower coloration and resistance to Powdery Mildew.

The new Phlox plant originated from a cross-pollination conducted by the Inventor in July, 2007 of Phlox carolina ‘Minnie Pearl’, not patented, as the female, or seed, parent with Phlox maculata ‘Alpha’, not patented, as the male, or pollen, parent. The new Phlox plant was discovered and selected by the Inventor as a single flowering plant within the progeny of the stated cross-pollination in a controlled environment in Upper Tyrone Township, Pa. in June, 2008.

Asexual reproduction of the new Phlox plant by vegetative stem cuttings in a controlled greenhouse environment in Upper Tyrone Township, Pa. since 2009 has shown that the unique features of this new Phlox plant are stable and reproduced true to type in successive generations.

SUMMARY OF THE INVENTION

Plants of the new Phlox plant have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature and light intensity without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘Daughter of Pearl’. These characteristics in combination distinguish ‘Daughter of Pearl’ as a new and distinct Phlox plant:

-   -   1. Upright and mounding plant form.     -   2. Vigorous growth habit.     -   3. Freely basal branching habit.     -   4. Early and freely flowering habit.     -   5. Large conical inflorescences with white and purple-colored         flowers.     -   6. Resistance to Powdery Mildew.

Plants of the new Phlox differ from plants of the female parent, ‘Minnie Pearl’, in the following characteristics:

-   -   1. Plants of the new Phlox are taller and denser than plants of         ‘Minnie Pearl’.     -   2. Inflorescences of plants of the new Phlox are conical in         shape whereas inflorescences of plants of ‘Minnie Pearl’ are         flat-topped.     -   3. Plants of the new Phlox and ‘Minnie Pearl’ differ in flower         color as plants of ‘Minnie Pearl’ have white-colored flowers.

Plants of the new Phlox differ from plants of the male parent, ‘Alpha’, in the following characteristics:

-   -   1. Leaves of plants of the new Phlox are not as glossy as leaves         of plants of ‘Alpha’.     -   2. Inflorescences of plants of the new Phlox are conical in         shape whereas inflorescences of plants of ‘Alpha’ are         flat-cylindrical in shape.     -   3. Inflorescences of plants of the new Phlox are denser than         inflorescences of plants of ‘Alpha’.     -   4. Plants of the new Phlox and ‘Alpha’ differ in flower color as         plants of ‘Alpha’ have magenta pink-colored flowers.     -   5. Plants of the new Phlox are resistant to Powdery Mildew         whereas plants of ‘Alpha’ are susceptible to Powdery Mildew.

Plants of the new Phlox can be compared to plants of Phlox maculata ‘Omega’, not patented. In side-by-side comparisons, plants of the new Phlox and ‘Omega’ differed in the following characteristics:

-   -   1. Plants of the new Phlox were taller than plants of ‘Omega’.     -   2. Inflorescences of plants of the new Phlox were conical in         shape whereas inflorescences of plants of ‘Omega’ were         cylindrical in shape.     -   3. Inflorescences of plants of the new Phlox had more flowers         per inflorescence than plants of ‘Omega’.     -   4. Plants of the new Phlox had slightly smaller flowers than         plants of ‘Omega’.     -   5. Plants of the new Phlox and ‘Omega’ differed in flower color         as plants of ‘Omega’ had red purple-colored flowers.     -   6. Plants of the new Phlox had shorter peduncles than plants of         ‘Omega’.     -   7. Plants of the new Phlox were resistant to Powdery Mildew         whereas plants of ‘Omega’ were susceptible to Powdery Mildew.

Plants of the new Phlox can also be compared to plants of Phlox maculata ‘Flower Power’, disclosed in U.S. Plant Pat. No. 17,551. In side-by-side comparisons, plants of the new Phlox and ‘Flower Power’ differed in the following characteristics:

-   -   1. Inflorescences of plants of the new Phlox were conical in         shape whereas inflorescences of plants of ‘Flower Power’ were         cylindrical in shape.     -   2. Inflorescences of plants of the new Phlox had more flowers         per inflorescence than plants of ‘Flower Power’.     -   3. Plants of the new Phlox and ‘Flower Power’ differed slightly         in flower color.     -   4. Plants of the new Phlox were resistant to Powdery Mildew         whereas plants of ‘Flower Power’ were susceptible to Powdery         Mildew.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Phlox plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Phlox plant.

The photograph on the first sheet comprises a side perspective view of typical flowering plants of ‘Daughter of Pearl’.

The photograph at the top of the sheet is a close-up view of a typical flowering plant of ‘Daughter of Pearl’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations, measurements and values describe plants grown during the spring and summer in one-gallon containers in a polyethylene-covered greenhouse and an outdoor nursery in Upper Tyrone Township, Pa. and under cultural practices typical of Phlox production. During the production of the plants, day temperature averaged 26° C. and night temperatures averaged 15° C. Plants were two years old when the photographs and description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 1995 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Phlox carolina×Phlox maculata ‘Daughter of     Pearl’. -   Parentage:     -   -   Female, or seed, parent.—Phlox carolina ‘Minnie Pearl’, not             patented.         -   Male, or pollen, parent.—Phlox maculata ‘Alpha’, not             patented. -   Propagation:     -   -   Type.—By stem cuttings.         -   Time to initiate roots, summer.—About three weeks at night             temperatures about 15° C. and day temperatures about 26° C.         -   Time to produce a rooted plant, summer.—About six weeks at             night temperatures about 15° C. and day temperatures about             26° C.         -   Root description.—Medium in thickness, fibrous; white in             color.         -   Rooting habit.—Freely branching; medium density. -   Plant description:     -   -   Plant and growth habit.—Herbaceous perennial; upright and             mounding plant habit, columnar; vigorous growth habit;             freely basal branching habit with about six to eight primary             laterals developing per plant.         -   Plant height.—About 90 cm.         -   Plant width (spread).—About 60 cm.         -   Lateral branches.—Length: About 90 cm. Diameter: About             2.5 mm. Internode length: About 4.5 cm to 7.5 cm. Strength:             Strong. Texture: Slightly pubescent. Color: Close to 145B,             spotted and streaked with close to 59B. -   Leaf description:     -   -   Arrangement.—Opposite, simple; sessile.         -   Length.—About 4 cm to 9.5 cm.         -   Width.—About 1.3 cm to 1.6 cm.         -   Shape.—Lanceolate.         -   Apex.—Acute.         -   Base.—Gradually tapering.         -   Margin.—Entire.         -   Texture, upper and lower surfaces.—Glabrous; thick; waxy.         -   Venation pattern.—Pinnate.         -   Color.—Developing and fully expanded leaves, upper surface:             Close to 139B; venation, close to 139B. Developing and fully             expanded leaves, lower surface: Close to 139C; venation,             close to 139C. -   Flower description:     -   -   Flower form and flowering habit.—Single rotate and             salverform flowers arranged in terminal compound panicles;             panicles conical in shape; freely flowering habit with about             70 to 80 flowers developing per inflorescence; flowers face             upright to outwardly.         -   Fragrance.—Moderately fragrant; sweet.         -   Natural flowering season.—Early flowering habit, plants             begin flowering about eight weeks after planting; plants             flowering continuously from mid-spring to early summer in             Pennsylvania.         -   Postproduction longevity.—Flowers last about seven to ten             days on the plant and as a cut flower; flowers not             persistent.         -   Flower buds.—Height: About 2.5 cm. Diameter: About 3.5 mm.             Shape: Elongated oblong. Color: Close to 74C; distally,             close to 155D.         -   Inflorescence height.—About 8 cm to 20 cm.         -   Inflorescence diameter.—About 8 cm to 10 cm.         -   Flower diameter.—About 2.1 cm to 2.3 cm.         -   Flower depth.—About 2.5 cm.         -   Flower throat diameter.—About 1.8 mm.         -   Flower tube length.—About 2.5 cm.         -   Flower tube diameter, at base.—About 1.5 mm.         -   Petals.—Quantity per flower and arrangement: Typically five             in a single whorl; petals fused at the base into a narrow             tube. Lobe length: About 1 cm to 1.1 cm. Lobe width: About             1.1 cm. Shape: Rhomboidal. Apex: Obtuse. Margin: Entire.             Texture: Petal lobes, upper and lower surfaces: Smooth,             glabrous. Throat: Smooth, glabrous. Tube: Smooth, glabrous.             Color: Developing and fully expanded petal lobes, upper             surface: Close to 155D shaded with close to 74C. Developing             and fully expanded petal lobes, lower surface: Close to             155D; towards the base shaded with close to 74D. Flower             throat: Close to 74D. Flower tube: Close to 74D.         -   Sepals.—Quantity per flower and arrangement: Typically five             in a single whorl, fused towards the base into a slender             tube. Length: About 8 mm. Width: About 2 mm. Shape:             Lanceolate. Apex: Acute. Margin: Entire, membraneous.             Texture, upper and lower surfaces: Smooth, glabrous. Color,             upper surface: Close to 145B. Color, lower surface: Close to             145B shaded with close to 70B.         -   Peduncles.—Length: About 2 cm. Diameter: About 1 mm. Angle:             Erect. Strength: Strong. Texture: Smooth, glabrous. Color:             Close to 145B with irregular spotting and streaking, close             to 59B.         -   Pedicels.—Length: About 4 mm to 5 mm. Diameter: About             0.5 mm. Angle: About 30° from peduncle axis. Strength:             Strong. Texture: Pubescent. Color: Close to 145B.         -   Reproductive organs.—Stamens: Quantity per flower: Typically             five. Filament length: About 1.5 mm. Anther shape: Oval.             Anther length: About 2 mm. Anther color: Close to 17A.             Pollen amount: Moderate. Pollen color: Close to 17A.             Pistils: Quantity per flower: One. Pistil length: About             2.5 cm. Stigma shape: Tri-parted. Stigma color: Close to             154C. Style length: About 2.2 cm. Style color: Close to             154C. Ovary color: Close to 145B.         -   Seeds.—Quantity per flower: About one to three. Length:             About 3 mm. Diameter: About 2 mm. Color: Close to 200C. -   Disease & pest resistance: Plants of the new Phlox have been     observed to be resistant to Powdery Mildew. Plants of the new Phlox     have not been observed to be resistant to pests and other pathogens     common to Phlox plants. -   Garden performance: Plants of the new Phlox have been observed to     have good garden performance and tolerate rain and wind and to     temperatures ranging from about −30° C. to 45° C. 

It is claimed:
 1. A new and distinct Phlox plant named ‘Daughter of Pearl’ as illustrated and described. 